CN105948051B - A kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy - Google Patents
A kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy Download PDFInfo
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- CN105948051B CN105948051B CN201610581732.3A CN201610581732A CN105948051B CN 105948051 B CN105948051 B CN 105948051B CN 201610581732 A CN201610581732 A CN 201610581732A CN 105948051 B CN105948051 B CN 105948051B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002994 raw material Substances 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 20
- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 17
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000005272 metallurgy Methods 0.000 title claims abstract description 15
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 12
- 239000004571 lime Substances 0.000 title claims abstract description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 9
- 239000011575 calcium Substances 0.000 title claims abstract description 9
- 239000003245 coal Substances 0.000 claims abstract description 26
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004939 coking Methods 0.000 claims abstract description 12
- 235000012255 calcium oxide Nutrition 0.000 claims abstract description 10
- 239000000292 calcium oxide Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 238000005453 pelletization Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000011295 pitch Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000011294 coal tar pitch Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 241000233855 Orchidaceae Species 0.000 claims 1
- 239000000571 coke Substances 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 239000011230 binding agent Substances 0.000 abstract description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 4
- 239000011300 coal pitch Substances 0.000 description 3
- 239000011339 hard pitch Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy, it is characterised in that comprises the following steps：Ramsbottom carbon powder, quick lime powder, coking coal, rich coal and pitch are uniformly mixed, heating stirring, are squeezed into pelletizing, natural cooling, you can.Method provided by the invention is effectively utilized the debris of semi-coke block and caustic lime block, economizes on resources, environmental protection；This method is raw materials used to be not required to levigate processing, low to raw materials size requirement, and operating process is simple；Added in raw material on a small quantity rich in the burnt rich coal for bonding matter as additive, reduce the addition of pitch binder, while also enhance the high temperature bond performance of pelletizing and anti-crushing performance.
Description
Technical field
The present invention relates to coal chemical technology, and in particular to a kind of calcium lime powder and semi-coke powder prepare the side of calcium carbide raw materials for metallurgy
Method.
Background technology
Traditional calcium carbide carries out smelting preparation using block coal and lump lime as raw material, and this method causes calcium carbide to prepare
There are numerous and diverse lime calcining process, block coal and lime contact area are small, power consumption is big, easily produces a large amount of dust and original
The problems such as material debris, and these raw material chips further bring a degree of waste and problem of environmental pollution.Therefore, such as
What, which efficiently uses semi-coke chip and quick lime chip, becomes current protrusion and stubborn problem.Since semi-coke chip and quick lime are broken
Bits are respectively provided with the characteristics such as size heterogeneity, impurity are more, caking property is low, therefore cause it to be difficult shaping.In face of this problem, people
A variety of feasible proposals are proposed, such as：A certain amount of additive is added into raw material chip, is mixed hot-forming etc.
Deng.
In the calcium carbide raw materials for metallurgy preparation method that the prior art provides, the requirement to raw material is more harsh, and cost is higher, and
Preparation process is complicated, is unsuitable for large-scale industrial production.
The content of the invention
The purpose of the present invention is the defect existing in the prior art for more than, present invention is primarily aimed at overcome existing skill
A kind of shortcoming of art, there is provided of low cost, simple calcium carbide raw materials for metallurgy preparation method of method.
Specifically, the present invention provides a kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy, including
Following steps：Ramsbottom carbon powder, quick lime powder, coking coal, rich coal and pitch are uniformly mixed, heating stirring, is squeezed into pelletizing, from
So cooling, you can.
Ramsbottom carbon powder of the present invention, the particle diameter of quick lime powder are in below 5mm.The grain of the coking coal, rich coal and pitch
Footpath is in below 1mm.
Wherein, the fixation carbon content of the coking coal is more than 70%, and the fixation carbon content of the rich coal is more than 65%, institute
It is coal tar pitch to state coal tar pitch.
In order to strengthen the comprehensive performance of gained calcium carbide raw materials for metallurgy, the calcium lime powder, semi-coke powder, coking coal, rich coal, pitch
Mass ratio be preferably 100：130：5~20：5~20：5~14.
The temperature of the heating stirring is 100~200 DEG C.The time of the heating stirring is 10~30 minutes.
The extruding preferably uses two pairs of rollers ball press.The pressure of the extruding is 10~15MPa.
The calcium carbide raw materials for metallurgy of the invention that further protection is prepared using the method.
The method that calcium lime powder provided by the invention and semi-coke powder prepare calcium carbide raw materials for metallurgy has following significant advantage：Should
Method efficiently utilizes the debris of semi-coke block and caustic lime block, economizes on resources, environmental protection；This method is raw materials used not
Levigate processing is needed, low to raw materials size requirement, operating process is simple；Added in raw material on a small quantity rich in the burnt rich coal conduct for bonding matter
Additive, reduces the addition of pitch binder, while also enhances the high temperature bond performance of pelletizing and anti-crushing performance, is suitable for
Large-scale industrial production.
Embodiment
Following embodiments are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
Calcium carbide raw materials for metallurgy is prepared using following methods：
Size is pressed in below 5mm Ramsbottom carbon powders, quick lime powder, size in below 1mm coking coal, rich coal and hard pitch
It is 100 according to mass ratio：130：15：10：7 are uniformly mixed, then heating stirring 30 minutes under 150 DEG C of temperature conditionss, finally
Pelletizing, natural cooling are squeezed under 13MPa pressure with two pairs of rollers ball press, you can.
Embodiment 2
Calcium carbide raw materials for metallurgy is prepared using following methods：
By size in below 3mm Ramsbottom carbon powders, quick lime powder, size is in below 0.5mm coking coal, rich coal and hard pitch
It is 100 according to mass ratio：130：20：12：9 are uniformly mixed, then heating stirring 25 minutes under 180 DEG C of temperature conditionss, most
Afterwards pelletizing is squeezed under 12MPa pressure with two pairs of rollers ball press, natural cooling,.
Embodiment 3
Calcium carbide raw materials for metallurgy is prepared using following methods：
By size in below 1mm Ramsbottom carbon powders, quick lime powder, size is in below 0.1mm coking coal, rich coal and hard pitch
It is 100 according to mass ratio：130：18：11：13 are uniformly mixed, then heating stirring 15 minutes under 200 DEG C of temperature conditionss, most
Afterwards pelletizing, natural cooling are squeezed into under the airborne 15MPa pressure of two pairs of rollers pressure ball, you can.
Although above the present invention is made to retouch in detail with general explanation, embodiment and experiment
State, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Scope.
Claims (9)
1. a kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy, it is characterised in that comprise the following steps：By orchid
Carbon powder, quick lime powder, coking coal, rich coal and pitch are uniformly mixed, the calcium lime powder, semi-coke powder, coking coal, rich coal, pitch
Mass ratio be 100：130：5~20：5~20：5~14；Heating stirring, is squeezed into pelletizing, natural cooling, you can.
2. according to the method described in claim 1, it is characterized in that, the particle diameter of the Ramsbottom carbon powder, quick lime powder 5mm with
Under.
3. according to the method described in claim 1, it is characterized in that, the particle diameter of the coking coal, rich coal and pitch is in below 1mm.
4. the method according to claim 1 or 3, it is characterised in that the fixation carbon content of the coking coal is more than 70%, institute
The fixation carbon content of rich coal is stated more than 65%, the pitch is coal tar pitch.
5. according to the method described in claim 1, it is characterized in that, the temperature of the heating stirring is 100~200 DEG C.
6. according to the method described in claim 5, it is characterized in that, the time of the heating stirring is 10~30 minutes.
7. according to the method described in claim 1, it is characterized in that, the pressure of the extruding is 10~15MPa.
8. the method according to claim 1 or 7, it is characterised in that the extruding uses two pairs of rollers ball press.
9. the calcium carbide raw materials for metallurgy being prepared using claim 1~8 any one the method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610581732.3A CN105948051B (en) | 2016-07-21 | 2016-07-21 | A kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy |
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| CN201610581732.3A CN105948051B (en) | 2016-07-21 | 2016-07-21 | A kind of method that calcium lime powder and semi-coke powder prepare calcium carbide raw materials for metallurgy |
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| CN105948051B true CN105948051B (en) | 2018-04-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477579A (en) * | 2016-11-16 | 2017-03-08 | 神雾环保技术股份有限公司 | A kind of dry shaping method of carbide raw material and its dedicated system |
| CN106753654A (en) * | 2016-11-24 | 2017-05-31 | 神雾环保技术股份有限公司 | Improve high-temperature agglomerant of the jet coal with quick lime mixing pellet strength and its application |
| CN106946257A (en) * | 2017-03-13 | 2017-07-14 | 神雾环保技术股份有限公司 | Semi-coke powder prepares calcium carbide compound binding agent and the method for preparing calcium carbide |
| CN107010627B (en) * | 2017-04-11 | 2020-12-25 | 北京柯林斯达科技发展有限公司 | Method for producing pellet calcium carbide raw material by recycling calcium carbide furnace gas fly ash, semi coke powder and quicklime powder |
| CN107189796A (en) * | 2017-05-25 | 2017-09-22 | 神雾环保技术股份有限公司 | The forming method of calcium carbide production raw material |
| CN109970063A (en) * | 2019-03-28 | 2019-07-05 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | A kind of method producing calcium carbide and feed proportioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046140A (en) * | 1990-04-30 | 1990-10-17 | 伊敏河矿区发电厂 | Produce the technology of calcium carbide with brown coal |
| CN1053221A (en) * | 1990-12-17 | 1991-07-24 | 伊敏河矿区发电厂 | Produce the technology of calcium carbide with long-flame coal |
| CN101172605A (en) * | 2007-09-28 | 2008-05-07 | 李书堂 | Method for producing calcium carbide |
| CN102249232A (en) * | 2011-05-31 | 2011-11-23 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material by extruding blue coke and lime powder |
| CN103436311A (en) * | 2013-09-02 | 2013-12-11 | 三门峡中兴煤炭综合利用研究开发中心 | Replacing coke capable of being used as raw coke for calcium carbide production as well as preparation method of replacing coke |
| CN104560256A (en) * | 2014-12-12 | 2015-04-29 | 三门峡中兴节能环保科技有限公司 | Formed coke for closed calcium carbide production mainly prepared from semi-coke powder |
-
2016
- 2016-07-21 CN CN201610581732.3A patent/CN105948051B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046140A (en) * | 1990-04-30 | 1990-10-17 | 伊敏河矿区发电厂 | Produce the technology of calcium carbide with brown coal |
| CN1053221A (en) * | 1990-12-17 | 1991-07-24 | 伊敏河矿区发电厂 | Produce the technology of calcium carbide with long-flame coal |
| CN101172605A (en) * | 2007-09-28 | 2008-05-07 | 李书堂 | Method for producing calcium carbide |
| CN102249232A (en) * | 2011-05-31 | 2011-11-23 | 宁夏兴平精细化工股份有限公司 | Method for synthesizing calcium carbide smelting raw material by extruding blue coke and lime powder |
| CN103436311A (en) * | 2013-09-02 | 2013-12-11 | 三门峡中兴煤炭综合利用研究开发中心 | Replacing coke capable of being used as raw coke for calcium carbide production as well as preparation method of replacing coke |
| CN104560256A (en) * | 2014-12-12 | 2015-04-29 | 三门峡中兴节能环保科技有限公司 | Formed coke for closed calcium carbide production mainly prepared from semi-coke powder |
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